High-purity (>99.0%) and available online for priority dispatch, Tris(2-(benzo[b]thiophen-2-yl)pyridineiridium(III), CAS No. 405289-74-9, Sublimed ≥99.0%

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Tris(2-(benzo[b]thiophen-2-yl)pyridineiridium, known as Ir(btpy)3, is an efficient red phosphorescent emitter (PHOLED). It is commonly used in organic light-emitting diodes and polymer solar cells as a dopant, and in barometric pressure probes due to its sensitivity to oxygen [2].

Wang et al. demonstrated that a higher Ir(btpy)3 doping concentration is beneficial to photon harvesting in the active layer, but the interpenetrating network of P3HT:PCBM can be damaged through high-temperature annealing treatment [3].

General Information

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CAS number	405289-74-9
Chemical formula	C39H24IrN3S3
Molecular weight	823.08 g/mol
Absorption	λmax 292, 366, 408 nm in THF
Fluorescence	λem 596, 645 nm in THF
HOMO/LUMO	HOMO 5.08 eV; LUMO 2.67 eV [1]
Synonyms	Tris(2-(benzo[b]thiophen-2-yl)pyridineiridium(III); Tris[2-(benzo[b]thiophen-2-yl)pyridinato-C3,N]iridium(III) fac-Tris[2-(benzo[b]thiophen-2-yl)pyridinato-C3,N]iridium(III) fac-Ir(btpy)3, Tris(2-(benzo[b]thiophen-2-yl)pyridineiridium(III)
Classification / Family	Organometallic complex, phosphorescent red emitter, phosphorescence dopant OLEDs, polymer solar cells, sublimed materials

Product Details

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Purity	>99.0% (sublimed)
Melting point	> 300 °C
Colour	Red powder

*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials.

Chemical Structure

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Chemical Structure of Tris(2-(benzo[b]thiophen-2-yl)pyridineiridium(III) [Ir(btpy)3], CAS 405289-74-9

Characterisation

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1H NMR of fac-Tris[2-(benzo[b]thiophen-2-yl)pyridinato-C3,N]iridium(III) Ir(btpy)3 in CDCl3HPLC trace of Tris[2-(benzo[b]thiophen-2-yl)pyridinato-C3,N]iridium(III), Ir(btpy)3